Examples with Vector2 com.badlogic.gdx.math.Vector2 used on opensource projects

Example 56 with Vector2

use of com.badlogic.gdx.math.Vector2 in project libgdx by libgdx.

the class Box2DDebugRenderer method drawJoint.

private void drawJoint(Joint joint) {
    Body bodyA = joint.getBodyA();
    Body bodyB = joint.getBodyB();
    Transform xf1 = bodyA.getTransform();
    Transform xf2 = bodyB.getTransform();
    Vector2 x1 = xf1.getPosition();
    Vector2 x2 = xf2.getPosition();
    Vector2 p1 = joint.getAnchorA();
    Vector2 p2 = joint.getAnchorB();
    if (joint.getType() == JointType.DistanceJoint) {
        drawSegment(p1, p2, JOINT_COLOR);
    } else if (joint.getType() == JointType.PulleyJoint) {
        PulleyJoint pulley = (PulleyJoint) joint;
        Vector2 s1 = pulley.getGroundAnchorA();
        Vector2 s2 = pulley.getGroundAnchorB();
        drawSegment(s1, p1, JOINT_COLOR);
        drawSegment(s2, p2, JOINT_COLOR);
        drawSegment(s1, s2, JOINT_COLOR);
    } else if (joint.getType() == JointType.MouseJoint) {
        drawSegment(joint.getAnchorA(), joint.getAnchorB(), JOINT_COLOR);
    } else {
        drawSegment(x1, p1, JOINT_COLOR);
        drawSegment(p1, p2, JOINT_COLOR);
        drawSegment(x2, p2, JOINT_COLOR);
    }
}

Example 57 with Vector2

use of com.badlogic.gdx.math.Vector2 in project libgdx by libgdx.

the class Box2DDebugRenderer method drawSolidPolygon.

private void drawSolidPolygon(Vector2[] vertices, int vertexCount, Color color, boolean closed) {
    renderer.setColor(color.r, color.g, color.b, color.a);
    lv.set(vertices[0]);
    f.set(vertices[0]);
    for (int i = 1; i < vertexCount; i++) {
        Vector2 v = vertices[i];
        renderer.line(lv.x, lv.y, v.x, v.y);
        lv.set(v);
    }
    if (closed)
        renderer.line(f.x, f.y, lv.x, lv.y);
}

Example 58 with Vector2

use of com.badlogic.gdx.math.Vector2 in project gdx-skineditor by cobolfoo.

the class Tooltips method showTooltip.

public void showTooltip(Actor actor) {
    Vector2 v = new Vector2();
    actor.localToStageCoordinates(v);
    if (tooltip == null) {
        LabelStyle style = new LabelStyle();
        style.font = tooltipStyle.font;
        style.background = tooltipStyle.background;
        style.fontColor = tooltipStyle.fontColor;
        tooltip = new Label(tooltips.get(actor), style);
        tooltip.setStyle(style);
        tooltip.pack();
        tooltip.setPosition(v.x + 7.5f, v.y - tooltip.getPrefHeight() - 15);
        tooltip.setOriginY(tooltip.getPrefHeight());
        tooltip.setColor(1, 1, 1, 0);
        tooltip.setScale(1, 0);
        tooltip.addAction(parallel(fadeIn(0.15f), scaleTo(1, 1, 0.15f)));
    } else {
        tooltip.setText(tooltips.get(actor));
        tooltip.pack();
        tooltip.setPosition(v.x + 7.5f, v.y - tooltip.getPrefHeight() - 15);
    }
    stage.addActor(tooltip);
}

Example 59 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class ShapeUtils method calculateConvexHull.

/**
	 * Calculates the Convex Hull of a collection of points, extracted from <a href="http://www.cse.unsw.edu.au/~lambert/java/3d/ConvexHull.html">here</a>
	 * 
	 * @param points
	 *            An array with the points to be used when building the Convex Hull
	 * @param convexHullPoints
	 *            An array where the Convex Hull points will be stored.
	 */
public static void calculateConvexHull(Array<Vector2> points, Array<Vector2> convexHullPoints) {
    if (points.size <= 1)
        return;
    Vector2 p;
    Vector2 bot = points.get(0);
    for (int i = 1; i < points.size; i++) {
        Vector2 point = points.get(i);
        if (point.y < bot.y)
            bot = point;
    }
    convexHullPoints.add(bot);
    p = bot;
    do {
        int i;
        i = points.get(0) == p ? 1 : 0;
        Vector2 cand = points.get(i);
        for (i = i + 1; i < points.size; i++) {
            Vector2 point = points.get(i);
            if (point != p && area(p, cand, point) > 0)
                cand = points.get(i);
        }
        convexHullPoints.add(cand);
        p = cand;
    } while (p != bot);
}

Example 60 with Vector2

use of com.badlogic.gdx.math.Vector2 in project commons-gdx by gemserk.

the class ShapeUtils method translateCircleShape.

/**
	 * Translates the CircleShape the specified translation.
	 * 
	 * @param circleShape
	 *            The CircleShape to be translated.
	 * @param tx
	 *            The translation in x coordinate.
	 * @param ty
	 *            The translation in y coordinate.
	 */
public static void translateCircleShape(CircleShape circleShape, float tx, float ty) {
    Vector2 position = circleShape.getPosition();
    position.add(tx, ty);
    circleShape.setPosition(position);
}